2c3fe021c4b428624773fa54c14b02f400f0f3d701ee9e31e8b3f4aecfb253be

General

Target

2c3fe021c4b428624773fa54c14b02f400f0f3d701ee9e31e8b3f4aecfb253be.exe
Size

215KB
MD5

5232b0ad9b650217d9b49238aa60f2a0
SHA1

d978b5ae74c3bcfa093c993376cd7bcbc5a70942
SHA256

2c3fe021c4b428624773fa54c14b02f400f0f3d701ee9e31e8b3f4aecfb253be
SHA512

5544f37b4f6b68589a0bbcbcaf377d33464bfeb61acf9f594a70162e3d65bf2d8b0d8476c31555c3d0c74da2c443d024afada22d40cf27e213bd20936a18b976
SSDEEP

6144:OQHdov3zLgGXXXXyyyyyyyyyyyy8XXXXXXWbbbbbbbbbN3334wGkmZ+7g78fXDa9:OQa4n

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1732	Skype.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
1536	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8e3bc91142bd8d798a10a1667ae4d2be.exe	Skype.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8e3bc91142bd8d798a10a1667ae4d2be.exe	Skype.exe

Loads dropped DLL 1 IoCs

pid	Process
1788	2c3fe021c4b428624773fa54c14b02f400f0f3d701ee9e31e8b3f4aecfb253be.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\8e3bc91142bd8d798a10a1667ae4d2be = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Skype.exe\" .."	Skype.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\8e3bc91142bd8d798a10a1667ae4d2be = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Skype.exe\" .."	Skype.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1732	Skype.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1732	Skype.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1788 wrote to memory of 1732	1788	2c3fe021c4b428624773fa54c14b02f400f0f3d701ee9e31e8b3f4aecfb253be.exe	27
PID 1788 wrote to memory of 1732	1788	2c3fe021c4b428624773fa54c14b02f400f0f3d701ee9e31e8b3f4aecfb253be.exe	27
PID 1788 wrote to memory of 1732	1788	2c3fe021c4b428624773fa54c14b02f400f0f3d701ee9e31e8b3f4aecfb253be.exe	27
PID 1788 wrote to memory of 1732	1788	2c3fe021c4b428624773fa54c14b02f400f0f3d701ee9e31e8b3f4aecfb253be.exe	27
PID 1732 wrote to memory of 1536	1732	Skype.exe	28
PID 1732 wrote to memory of 1536	1732	Skype.exe	28
PID 1732 wrote to memory of 1536	1732	Skype.exe	28
PID 1732 wrote to memory of 1536	1732	Skype.exe	28

C:\Users\Admin\AppData\Local\Temp\2c3fe021c4b428624773fa54c14b02f400f0f3d701ee9e31e8b3f4aecfb253be.exe
"C:\Users\Admin\AppData\Local\Temp\2c3fe021c4b428624773fa54c14b02f400f0f3d701ee9e31e8b3f4aecfb253be.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1788
- C:\Users\Admin\AppData\Local\Temp\Skype.exe
  "C:\Users\Admin\AppData\Local\Temp\Skype.exe"
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1732
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Skype.exe" "Skype.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:1536

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Skype.exe

Filesize
215KB

MD5
5232b0ad9b650217d9b49238aa60f2a0

SHA1
d978b5ae74c3bcfa093c993376cd7bcbc5a70942

SHA256
2c3fe021c4b428624773fa54c14b02f400f0f3d701ee9e31e8b3f4aecfb253be

SHA512
5544f37b4f6b68589a0bbcbcaf377d33464bfeb61acf9f594a70162e3d65bf2d8b0d8476c31555c3d0c74da2c443d024afada22d40cf27e213bd20936a18b976

Download Submit
C:\Users\Admin\AppData\Local\Temp\Skype.exe

Filesize
215KB

MD5
5232b0ad9b650217d9b49238aa60f2a0

SHA1
d978b5ae74c3bcfa093c993376cd7bcbc5a70942

SHA256
2c3fe021c4b428624773fa54c14b02f400f0f3d701ee9e31e8b3f4aecfb253be

SHA512
5544f37b4f6b68589a0bbcbcaf377d33464bfeb61acf9f594a70162e3d65bf2d8b0d8476c31555c3d0c74da2c443d024afada22d40cf27e213bd20936a18b976

Download Submit
\Users\Admin\AppData\Local\Temp\Skype.exe

Filesize
215KB

MD5
5232b0ad9b650217d9b49238aa60f2a0

SHA1
d978b5ae74c3bcfa093c993376cd7bcbc5a70942

SHA256
2c3fe021c4b428624773fa54c14b02f400f0f3d701ee9e31e8b3f4aecfb253be

SHA512
5544f37b4f6b68589a0bbcbcaf377d33464bfeb61acf9f594a70162e3d65bf2d8b0d8476c31555c3d0c74da2c443d024afada22d40cf27e213bd20936a18b976

Download Submit
memory/1732-62-0x00000000748F0000-0x0000000074E9B000-memory.dmp

Filesize
5.7MB

Download
memory/1732-64-0x00000000748F0000-0x0000000074E9B000-memory.dmp

Filesize
5.7MB

Download
memory/1788-54-0x00000000761F1000-0x00000000761F3000-memory.dmp

Filesize
8KB

Download
memory/1788-61-0x00000000748F0000-0x0000000074E9B000-memory.dmp

Filesize
5.7MB

Download

Analysis

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